package db;
import java.io.File;
import java.io.IOException;
import javax.sound.sampled.AudioFormat;
import javax.sound.sampled.AudioInputStream;
import javax.sound.sampled.AudioSystem;
import javax.sound.sampled.DataLine;
import javax.sound.sampled.FloatControl;
import javax.sound.sampled.LineUnavailableException;
import javax.sound.sampled.SourceDataLine;
import javax.sound.sampled.UnsupportedAudioFileException;

public class Sound_cdjv {
	 private String filename;

	    private Position curPosition;

	    private final int EXTERNAL_BUFFER_SIZE = 524288; // 128Kb

	    enum Position {
	        LEFT, RIGHT, NORMAL
	    };

	    public Sound_cdjv(String wavfile) {
	        filename = wavfile;
	        curPosition = Position.NORMAL;
	    }

	    public Sound_cdjv(String wavfile, Position p) {
	        filename = wavfile;
	        curPosition = p;
	    }

	    public void run() {

	        while(true)
	        {
	        File soundFile = new File(filename);
	        if (!soundFile.exists()) {
	            System.err.println("Wave file not found: " + filename);
	            return;
	        }

	        AudioInputStream audioInputStream = null;
	        try {
	            audioInputStream = AudioSystem.getAudioInputStream(soundFile);
	        } catch (UnsupportedAudioFileException e1) {
	            e1.printStackTrace();
	            return;
	        } catch (IOException e1) {
	            e1.printStackTrace();
	            return;
	        }

	        AudioFormat format = audioInputStream.getFormat();
	        SourceDataLine auline = null;
	        DataLine.Info info = new DataLine.Info(SourceDataLine.class, format);

	        try {
	            auline = (SourceDataLine) AudioSystem.getLine(info);
	            auline.open(format);
	        } catch (LineUnavailableException e) {
	            e.printStackTrace();
	            return;
	        } catch (Exception e) {
	            e.printStackTrace();
	            return;
	        }

	        if (auline.isControlSupported(FloatControl.Type.PAN)) {
	            FloatControl pan = (FloatControl) auline
	                    .getControl(FloatControl.Type.PAN);
	            if (curPosition == Position.RIGHT)
	                pan.setValue(1.0f);
	            else if (curPosition == Position.LEFT)
	                pan.setValue(-1.0f);
	        }

	        auline.start();
	        int nBytesRead = 0;
	        byte[] abData = new byte[EXTERNAL_BUFFER_SIZE];

	        try {
	            while (nBytesRead != -1) {
	                nBytesRead = audioInputStream.read(abData, 0, abData.length);
	                if (nBytesRead >= 0)
	                    auline.write(abData, 0, nBytesRead);
	            }
	        } catch (IOException e) {
	            e.printStackTrace();
	            return;
	        } finally {
	            auline.drain();
	            auline.close();
	        }
	        }
	    }

}
